ERC Advanced Grant · 2024
Shaping up for mitosis: the origins and consequences of the 3D structure of mitotic centromeres
The centre of the iconic X-shape of human chromosomes is the centromere. It is an extensive locus of specialised chromatin that assembles the kinetochore machinery to connect chromosomes to spindle microtubules for their correct segregation during cell division. How these centromeres obtain three-dimensional (3D) structures that coordinate assembly of kinetochores and resist substantial microtubule-based pulling forces is unknown. We discovered that vertebrate chromosomes are naturally dicentric: their centromeres are two-domain (‘bipartite’) structures, irrespective of underlying DNA sequence or position along the chromosome. Bipartite centromeres assemble bipartite kinetochores that…
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